Glassware-grinding machine



Nov. 16 1926.

E. MILLER GLASSWARE GRINDING MACHINE Filed Jan. 10. 1925 2 Sheets-Sheet 1 3440mm EDWARD MILLER 7' i f Nov. 16 1926.

E. MILLER GLASSWARE GRINDING MACHINE Filed Jan.

2 Sheets-Sheet 2 EDWARD MILLER 4; fuxopmovw Patented Nov. 16, 1926.

EDWARD mitten, v or connmnns, OHIO.

GLASSlN'ARE-GRINDING MACHINE;

-App1ication filed January 10, 1925. Serial No. 1,615.

In the manufacture of: glass ware and more particularly of tumblers and the like I invention being to afford means whereby the glass is tion and subsequently clean or so as to require when finally removed from the machine. Other objects will appear from the following disclosure. The invention is embodied in the example herein particularly shown and described, the

' features of novelty being finally claimed. 'In'the accompanying drawings- Figure 1 is 'ew of the flushed during the grinding operathereby leaving it a vertical sectional v1 ware supporting, grinding elements and the parts actuating the same.

Fig. 2 is a detail partly insection showing the cam means for actuating the ware chuck. Fig. 3 is a view partly in verticalsection showing how a plurality of parts of Figs. 1 and 2 are embodied in a revolving continuously operating mechanism.

Fig. A. is a detail in elevation looking toward the center of the machine showing the a grinding and water supplying elements with the hood removed. v

In the views 5 designates the grinding 35 stone which is secured in a head 6 by means of a centrally bored thimble 7 threaded into the head 6. Said head isscrewed into the upper end of a spindle Ssupported by suitable bearings at 9 and 9 in a housing 10. The housing 10 is carried upon a large spur gear table 11 forming a portion of a main frame 12 rotat ing about a central column 13. Thelower portion of the tubular spindle 8 has keyed to it a pinion 14 driven by a large spur gear 15 having a hub 16 journaled on the column 13, said hub having a mitre gear 17 driven by a mitre gear 18 on a suitable power shaft 19, The gearing and powerapplied are such little or no washing vertically arranged tubular that the stone may be given, saytwenty-four hundred revolutions per minute.

Extending through the rotatable tubular spindle 8 is a pipe 21 threaded at its upper end into a head 22 tapered upward and provided with an annular cushion 22 prefer. 'ably of soft rubber. The head 22 with its cushion are made so that the tumbler or piece of ware 51 to be ground rests; quite loosely on it. Thepipe 21 is non-rotating with respectto the spindle 8 but is yield-ingly supported for vertical movement therein by means of springs like that shown at 23 connected with the opposite ends of a cross piece 24 fixed to thelower end of the pipe 21 and with an apron'lOf of the housing 10 extending downward from the horizontal portion of the housing. The springs 23 are designed to so far lift the pipe 21 and its head that when the piece of ware 51 isnot positively depressed it will be supported m somewhat elevated from the contact with the stone as depicted at the right hand side of Fig. 1. llhe pipe 21 is designed to conduct water to the interior of the ware and to the stone near thelip being ground and for the 7 purpose saidpipe is provided with a series ofperforations as indicated at 26 near the upper end thereof. Walter under suitable pressure is supplied to the pipe 21 by means of a short piece of hose 27 connected with an opening eifecting communication with said pi e' at the middle of thecross piece 21 and an annular traveling valve 28 inclosing a channel 29 that is. primarily fed with water throu h a stationary pipe 25 in a boss 30 on a stationa iy Iing containing the channel 29.

31 designates a were chucking member or pressurehead provided at its inner side near its rim with an annular seat to receive a band 32 of felt or other material ingly grip the ware The said chuck member 31' 's secured on thelower end of a hollow stem 33 sliding vertically in suitable. bushings in the ends of arms 34 and 35 'extending outward from the central column 13. 95

Fixed on the arm 35' is a frame comprised of parallel verticalbars 36', 36, connected at the top by cross head 37; and adj ustably fixed w I adapted to yield- I to the middle of said cross head by means of i a set screw 38 is a rod 39 that extends downward. into the stem 33 of the chuck for the ejection of the ware from the chuckwhen the stem is raised.

Secured to and extending upward from the cross head 37 is an arm 40'having a cross head 41 in the ends of which are journaled pulleys 42 supporting a ehain'43 carrying a weight/44 at one end and having its other end connected with a double sleeve 45 attached to the stem 33 by means of a set screw 33*. The sleeve 45 also en ages a guiding rod 46 connected to and etween the ends of the arms 34 and 35 said rod standing parallel to the stem 33. The outer end of screw 33 constitutes a stud shaft on which is journaled a small roller 47 that at proper intervals in therevolution of the grinder about the central column 13 engages a stationary cam 48 supported on stationary arm 48* thereby automatically causing the elevation of the stem 33 and its chuck 31. The weight 44 should be made to only so far counterbalance the weight .of the stem 33 and its chuck as to. permit the chuck to exert the proper pressu e of the lip-or edge of the ware on the stone or grinding member to effect the desired grinding thereof in the time limit fixed and determined; by he revolution of the stonev about the central. column. The pressure of the chucking head can be varied by addition to or subtraction from the counterbalancing weight.

50 designates a pendent hook pivoted oh thebushing in the arm and having its hooking end located a little above the point to which the sleeve on the stem is carried upward by the cam 48 so that said hooking end can autbmatically drop into position to engage the lower side of the sleeve-when the stem is raised by hand to support the stem and chuck out of operating positioni if exigencies require. This hook can be-digthe tumbler 51 and presses it downward so itally removed to release the stem and chuck whenever desired.

'lhelarge. spur gear table 11 and the main frame are rotatedabout the central "column 13 by a pinion 53 on the end of a vertical shaft 54 geared to "and driven from the power'shaft 19in an obvious manner (not shown).

The operation isthisz Assuming that the stone 5 is being spun and the main frame,

and table '11 are turning-on the column 13, the operator places a tumbler- 51 onfthe head 22'while the chuck isin elevated position due to the action 0f the cam 48. When the roller 47 travels downward ofi' saidcam the chuck 31 desdends by gravity, engages that its li' or edge is brought into grinding contact withthe stone. The grinding action'rcontinues while the table and main.

frame are'rotating on the columnand until surrounded by a hood 52 open at its upper end so that the water used and the detritus resulting from the grinding operation are confined to the hood, such water flowing througha suitable pipe 55 to the base of the machine and. thence to awaste pipe.

The forms of the parts can be changed Without departing from the gist of the invention as claimed. .WhatIclaimisz.

1. Means for grinding the lips of hollow Ware, including, in combination, a grinding element having a substantially horizontal grinding surface, a water conductor extending upward through the grinding element for spraying the interior of the Ware beyond said grinding surface, a ware supporting means connected with the water conductor -to.engage the interior-of the ware in its inverted position and a pressure'ap; plying means' to engage the exterior of the ware and press the-same against the grinding element.

2. Means for grinding the lips of, hollow ware, including, in combination, a grinding element having a substantially horizontal grinding surface, a water conductor extending upward through the grinding element for spraying. the ware beyond said grinding surface, a ware supporting means to engage the interior of the ware in its in; verted position, said ware-supportingmeans being movable vertically with respect to said grinding surface to remove the, ware from the, grinding element and .a pressure applying means to engage the exterior of the ware and press the same against the grinding element. v

3. Means for grinding the lips ofhollow ware, including, in combination, a grind'rng ed position, said ware-supporting means being movable vertically with respect to 'saidgrinding'surface .to remove ytJhe ware from the grinding element, yielding means for holding said Support, in normally elevatedposition and a pressure applying means to engage the. exterior of the ware- .gagethe interior of the ware in. its invertgrindin g 7 surface,

1 ejecting the extending upward through spraying tl ware-supporting means.

'element. r

4. Means for grinding the lips of hollow ware, including, in combination, a grinding element having a substantially horizontal grinding surface, a water conductor for e ware extending through the grinding element upward beyond saidv grinding surface, a ware supporting means to engage the interior. of the ware and a chucking means to engage the exterior of the ware and press the same against the grinding element, said chucking means mounted to slide vertically above the said ware-supporting means and means for eject-ingtheware from the chuckin means when the chucking means is elevate to permit, the ware to return by gravity to the ware-supporting means. 5. Means for grindin the lips of hollow ware, including, in com ination, a grinding element having a substantially horizontal a water spraying means for the ware extending through the grinding element upward beyond said grinding surface, a ware supporting means provided with a cushioning member to engage the interior of the ware, and a chucking means to engage the exterior of the ware and press the same against the grinding element, said chucking means mounted to slide vertically above the said ware-supporting means, and means for ware from the chucking means when the chucking means is elevated to permit the. ware to return by gravity to the 6. Means for grinding the lips of hollow ware including, in combination a grinding element presenting a substantially horizontal.

grinding surface, means for rotating said element on a vertical axis,

a water conductor the grinding element beyond said grinding surface and having a discharge in position to flush the wall of the ware and yielding means for engaging the interior of the ware to normally support,

it in inverted position above sald grindng surface and around said ware flushing means,

said yielding means adapted to permit the depression of the ware to lip grinding position on said grinding element.

7. Means, for grinding the lips of hollow ware including, in combination, a grinding element presenting a'substantially horizontal grinding surface, a water conductor extending upward through the grinding elemen beyond said grinding surface and having a discharge in position to flush the wallof L.

yielding means for engaging the inware ' to normally support it in tenor of the ware 1 inverted position above? said grinding surface but in posltionto have its interior surface flushed by said flushing means, a chucking and pressure head to depress the ware to lip grinding position while the ware is beingting it to return yieldingly supporting flushed, means for elevating said chucking and pressure head with the ware therein from said supporting and flushing means, and means for ejectin the ware rom the chucking and pressure liead thereby permitto said supporting means for reflushing.

8. Means for grindin the lips of hollow ware, including, in .com ination,-a grinding element, means for rotating said element on a vertical axis, a spraying said axis, a ware supporting ing said pipe, said pipe an axis,

pipe located in head surmounthead being vertically movable in said yielding means vated position from the chucking and pressure head for engaging said ware to press the lip thereof against the grinding element, said chucking and pressure element operating vertically above said ware supporting head, and means for ejecting the ware from head when the latter is elevated from grinding position whereby when the ware is ejected from said chucking and pressure head it returns by gravity to the supporting head. i

9. Means for grindin the lips of hollow ware, including, in com ination, a grinding element presenting a substantially horizontal grinding surface, a water conductor for spraying the interior of the ware extending upward through the grinding element beyond said grinding surface, a ware supportingmeans for engaging the interior of the ware in its inverted position above said grinding surface and around said warespraying means, and means for yieldingly and normally holding said ware supporting means in a relatively elevated position. v 10. Means for grinding the lips of hollow ware including, in combination, a grinding element presenting a substantially horizontally grindin surface, a water conductor having a disc arge end standing above said grinding surface with an outlet in position to directl flush the interior ofthe lateral wall of t e ware beyond said grinding element when the ware is placed in inverted position around said discharge end.

11. Means for grinding the lips of hollow ware including, in comblnation, agrinding element presenting a substantially horizontal grinding surface, a water conductor having for holding said head with the ware in elegrinding element, a

the chucking and pressure a discharge end standing above said grinding surface in position to flush the interior wall of the ware beyond said grinding element when the wareis placed in inverted position around said discharge end and means for the ware above said grinding surface and means for exerting grinding pressure between said ware and grinding surface.

12. Means for grinding the lips of hollow wareincluding, in combination, a grindingelement presenting a substantially horizontal of the Ware beyond said grindin 5 when the Ware is element laced in lnvertefi osition around said disc arge end, a cus ioning means for *supg position a-roun orting the Ware in elevated said discharge end, a, Ware chucking and pressure exerting device for moving the ware toward the grinding surface,'means for, elevating the Ware chucking and pressure device from said grinding surface andian ejector for releasing the ware from chucked position.

EDWARD MILLER. 

